The series follows Arashi and his Wild Liger. The main antagonists are the Death Metal Empire, lead by Gallagher. They use Zoids for conquest, and have at their command many Zoids and warriors, including the Four Heavenly Kings. Arashi longs to follow his father's footsteps become a Zoid Hunter, and find his ultimate Partner. At the beginning of his journey, he partners up with the Wild Liger and meets Bacon and Team Supreme, who tell him about the Great Ancient Treasure Z. (Source: Zoids Wiki)Zoids—powerful animal-shaped combat mechs—are no longer used in warfare, but in organized sporting competitions. The Blitz Team, a group of pilots struggling to carve out a niche for themselves in the Zoid battling leagues, experience a stroke of luck when Bit Cloud, a vagrant junk dealer, wanders into their midst and proves himself capable of piloting the temperamental Liger Zero, a Zoid that refuses to let anyone else into its cockpit. Led by Bit and the Liger, the Blitz Team steadily make their way to the top—but along the way they attract the unwelcome attention of the Backdraft Group, an organization of Zoid pilots that operates outside the laws set down by the Zoid Battle Commission. The Backdraft want powerful Zoids to add to their ranks, and they have their eye on the Liger Zero...